Centrifugal apparatus with planetary movement



W. MAUSS.

CENTRIFUGAL APPARATUS WITH-PLANETARY MOVEMENT.

APPLXCATION FILED SEPT.4, 1919. A.

1,339,272. A Patentd May 4,1920.

WILI-IELM MAUSS, or JQHANNESBURG, TRANSVAAL, SOUTH AFRICA.

GENTRIFUGAL APPARATUS. wrrn PLANETARY MOVEMENT.

Specification of Letters Patent.

Patented May 4, 1920.

Application flled september 4, 1919. Serial No. 321,708. I

To all whom it may concern:

Be it known that I, WILHELM MAuss, sub gect of the King of Great Britainresiding at Cullinan Buildings, Main and Simmonds streets, Johannesburg,Transvaal Province of the Union of South Africa, have invented certainnew and useful Improvements in Centrifugal Apparatus with PlanetaryMovement, of which the following is a specification.

The present invention has reference to centrifugal apparatus of'the kindin which two -or more bodies such as separating drums are rotated athigh speed about a central axis and are also rotated at a relativelyslow rate about their individual axes.

In such. apparatus the unbalanced centrifugal tendency of each of thebodies due to its rotation about the central axis causes excessive wearofthe bearings in which they rotateand of the gear wheels by which theyare rotated. It is the object of the present invention to overcome thisdifiiculty.

In the accompanying drawings Figure I is an elevation, partly sectioned,of a jecting from a collar 26 rotatably mounted planetary separator withtwo drums; Fig. II is a plan of the same also partly sectioned- Fig. IIIis a diagram illustrating the operation.

' 1 is a shaft which isrotated athigh speed and carries the drumhousing.Said housing comprises an upper plate 2, a lower plate 3, two side ties5.

The shaft, drum housing and drums rotate as a whole about a centralaxis9, as indicated by the arrow A, FigLII. The individual drums are alsorotated aboutytheirf own axes 10 as indicated'by the arrows 1B.

The mixture to be treated is fed into the drums from the hopper 11 andsegregates in the part 12 of the drum remote from the main axis theinwardly directed lip 13, whilevthe separatedsolid is carried by theindividual rotation of the drum near to .themain axis 9, where it isparted from the drum and.

" passes out through the discharge apertures 14:. p

The centrifugal tendencyof each drum arcuate drum seatings 4, and. Bolts6 passing through the. upper and lower plates 2, 3, and the drum 9. Theliquid .flows away overby bodily movement with it of the means by whichit is retracted.

1t), 15 indicate straps which pass about the periphery of the drumsremote from the main axis 9. To each end of each strap a link 16 ispivoted bya, pin 17 and the links of the pair on each sideare pivoted bypins 18 to the strap 19 of an eccentric sheave 20. The straps 15, "thelinks 16 and the straps 19 thus form an endless loop or chain. Thelength of said chain can be regulated by adjusting screws 21.

The eccentrics 20 are fast with gear wheels 22 revolubly mounted on thehousing and revolved by rolling about a central pinion 23., Said pinion23 is mounted in bearings in the drum housing and is prevented fromturning by an arm 24 fast with it. Said arm engages a fixed part such asthe pin 25 pro-.

turning but also control gyration of the machine as a whole.

In Fig. III the circles 29 indicate the loci of the pins 18 connectingthe link 16 to the eccentric straps 19. The arcs 30 indicate the loci ofthe pins 17 connecting -vthe, links 16 to the straps 15, while; the

straight lines 31 are the loci of the centers vof the arcs of the straps15, and. alsoin part the loci of the axes 10 of the drums 7. Fourprincipal positions of the parts are shown respectively by full thicklines, full thin'lines, dotted lines and chain dotted lines;v thecorresponding positions of the links '17 and 18 and centers of the arcs15 beingindicated. in the first position by the letters 0, in the secondposition by the letters D, in the third pos tion by the letters E and inthe fourth. position by the letters F. r V

The circles 29 are substantially tangential to a tangent e. 31%),between the arcs 30. 1 As the result the maximum effective length of thechain system, or in other words, the greatest separation of the strapstra'l and' the drums merely begin to lift from larly the energyconsumptionissinall; a substantial proportion of the .energyex-' ters ofthe .ares 15 reciprocate between the outer extreme positions D and theinner extreme positions F. From position C to position E the chain iscirculated clockwise,

while from position E to position C the circulation-is reversed oranticlockwise.

"The combined effect of this virtual lengthening and shortening ofthechain and its *rec'iprocatory circulating movement 1s uti- The length ofthe chain is so regulated by the adjustment 18 that-thestraps pickup the-drums7 at about position E. At this position the circulating movementis neuth eirseats'e, From *Eto C the drums remain'lift ed and are alsorotated counter cloekwiseby 'the circulation of the chain. At point' Cthe circulatory motion has I ceasedand the drums are thus deposited onthem seats Without rotational movement.

From C to E the straps clear the drums andiare-cireulated clockwise,whereby they ment of the drums.

While Fig; III shows relatively large Y movement of "the parts, it isonly necessary in" practice to lift'the drums, say one 812(- teenth o-fan inch, and the circulatory .movement is correspondingly small. The"movements are, however, repeated frequently and produce the effect ofa' continuousslow rotation of the drumsin one directions Owing both tothe small individual 'movements of the drums-andthetoggle action of theeccentrics on the chain, the force exerted bythe-eccentrics can be kept'Within reasonable limits even with exceedingly heavy'centrifugal forcesexerted by the drums. Simipended in retracting and rotating the'drumsisnrecoveredin the reverse movement of restoring them to their'seatsandarresting their rotation.

Iielaim":

1. Ifi centrifugal apparatus, a number of bodies-having planetarymove1nent, seat1ngsfor 'the" bodies opposing their centrifugal Imovement; an endless flexibleloop embracingisaid bodies,- means'todeform the loop periodically to retract said bodies from theirseatingsnfor "rotation, and to circulate the loop While the bodies areso retracted."

2"." In centrif1igal apparatus, a number of bodies havlng planetarymovement, seatings fer the" bodies opposing "their centrifugal movement,an endless flexibler loop embracing said bodies, and means periodicallyto r 1 their seatings, said means also 1 bodies remotely from the centerof rotatending between the bodies, and means for movinga point'in saidportion-in a circle having a common tangent With the-bodies:

5. In centrifugal apparatus,-anumber of bodies having planetarymovement, seatings for the bodies opposing=their centrifugal movement,strapsadapted to embrace said tion, links connected to'said straps andmechanism movlng the ends of saidllnks Wltll a clrcular movementtangentlal to their almed L position. are restored to position for thenext move- 6. In a centrifugal apparatus, anumber of bodies havingplanetary movement, seatings for the bodies opposing their'centrifugalmovement, straps adapted'to embrace said bodies-remotely from the centerof rotation, rotatable eccentric sheaves, straps on other direction Whenthe bbdyl straps are loose. V

8; In centrifugal apparatus,- a number of bodies having planetarymovement, seatin-gs for the bodies' opposing their centrifugal movement,an endless flexible loop rernbraeing saidbodies, means periodically to"de form the loop 'Wherebyit is alternatelycontraeted to retraet 'thebodies from the seats v ingsand enlarged to clear the *bodies, saidmeans also circulatingxthe loop .to :start the bodies to rotateizfromrest at about the beginning ofthe retraction and to :stop their rotationas the strap clears them. I; 1

.9. Imeentrifugahapparatus, 'a-rotatable housing, bodies rotatablycarried in said housing symmetrically about the axis of rotationthereof, seatings for said bodies in the housing, a separate strap adated to embrace the outer part of each bo y, eccentric sheavesrotatably'mounted in the housing, eccentric straps on the eccentricsheaves, links connecting said eccentric straps to the body straps, gearWheels fast With the eccentric sheaves, and a central pinion With whichsaid gear Wheels mesh, said pinion being rotatably mounted in thehousing and means for preventing rotation of thepinion.

10. In centrifugal apparatus, a number of bodies having planetarymovement, seatings for the bodies opposing their centrifugal 11. Incentrifugal apparatus, a number of drums or the like disposed about amain axis of rotation, a revolving housing for the drums comprisingarcuate seatings and straight ties connecting said seatings, and meansfor retracting the drums from their seatings for rotation.

In testimony whereof I aflix m si nature.

WILHELM lWA SS.

